Digital Commons Network^™

The Power Of Women [Review Essay], Stephanie M. Wildman

Faculty Publications

No abstract provided.

An Incentive-Based Wild Horse Management System On Public Rangeland, Ray G. Huffaker, James E. Wilen, B. Gardner Delworth

Faculty Publications

This paper explores an incentive-based management system to induce federal grazing permittees to choose sustained cattle stocking strategies which accommodate government-set wild horse numbers and nongrazing uses. Particular attention is paid to constraints imposed by federal grazing statutes. The proposed system employs increased livestock grazing fees to induce permittees to provide increased vegetation for consumption by wild horses and nongrazing uses. The negative impact of increased fees on permittee wealth is counterbalanced with compensatory transfer payments. Taken together, grazing fees and compensation payments induce multiple-use compliance by permittee-stewards and keep their discounted livestock profits intact at some predetermined level.

Models And Tests In Functional Morphology: The Significance Of Description And Integration, Dominique G. Homberger

Faculty Publications

SYNOPSIS: Functional-anatomical work on complex structural systems is handicapped by several difficulties: (1) Lack of established guidelines on how to select the structures that are relevant for the intended study, (2) lack of methods to check the accuracy of the description of a system's morphology, and (3) the need to integrate a large mass of results obtained through a variety of approaches taken from different disciplines, such as anatomy, physiology, physics, biochemistry, ecology and evolutionary biology. Suggestions to alleviate some of the problems include (1) to use information on the physiological and physical properties of the tissues in a system …

Modeling Wetland Loss In Coastal Louisiana: Geology, Geography, And Human Modifications, James H. Cowan Jr., R. Eugene Turner

Faculty Publications

Habitat change in coastal Louisiana from 1955/6 to 1978 was analyzed to determine the influence of geological and man-made changes on landscape patterns within 7.5 min quadrangle maps. Three quantitative analyses were used: principal components analysis, multiple regression analysis, and cluster analysis.

Regional differences in land loss rates reflect variations in geology and the deltaic growth/decay cycles, man-induced changes in hydrology (principally canal dredging and spoil banking), and land-use changes (principally urbanization and agricultural expansion). The coastal zone is not homogeneous with respect to these variables and the interaction between causal factors leading to wetland loss is therefore locally variable …

Organ-Specific And Development Regulation Of The Nopaline Synthase Promoter In Transgenic Tobacco Plants, Gynheung An, Michael A. Costa, Amitava Mitra, Sam-Bong Ha, László Márton

Faculty Publications

Control regions of the nopaline synthase (nos) gene have been widely used to express foreign genes in plants since the promoter is active in a wide variety of plant tissues. We report here the characteristics of the nos promoter activity in transgenic tobacco (Nicotiana tabacum) plants at various developmental stages. The promoter was highly active in the lower parts of a plant and gradually decreased in the upper parts. This vertical gradient was maintained throughout plant growth until the flowering stage when the overall promoter strength decreased significantly in the vegetative organs. However, in various flower …

Inulin-125I-Tyramine, An Improved Residualizing Label For Studies On Sites Of Catabolism Of Circulating Proteins, Janet L. Maxwell, John W. Baynes, Suzanne R. Thorpe

Faculty Publications

Residualizing labels for protein, such as dilactitol-125I-tyramine (125I-DLT) and cellobiitol-125I-tyramine, have been used to identify the tissue and cellular sites of catabolism of long-lived plasma proteins, such as albumin, immunoglobulins, and lipoproteins. The radioactive degradation products formed from labeled proteins are relatively large, hydrophilic, resistant to lysosomal hydrolases, and accumulate in lysosomes in the cells involved in degradation of the carrier protein. However, the gradual loss of the catabolites from cells (t1/2 approximately 2 days) has limited the usefulness of residualizing labels in studies on longer lived proteins. We describe here a higher molecular weight (Mr approximately 5000), more efficient …

'Great' And 'Little,' 'Grid' And 'Group': Defining The Poles Of The Elite-Popular Continuum In Chinese Religion, Christian Jochim

Faculty Publications

No abstract provided.

Research With Human Subjects As A Paradigm In Teaching, Larry I. Palmer

Faculty Publications

No abstract provided.

Sequence Of The Psba Gene From Wild Type Triazin-Resistant Nicotiana Plumbaginifolia, Anikó Páy, Marvin A. Smith, Ferenc Nagy, László Márton

Faculty Publications

No abstract provided.

Oxidative Degradation Of Glucose Adducts To Protein: Formation Of 3-(NE-Lysino)-Lactic Acid From Model Compounds And Glycated Proteins, Mahtab U. Ahmed, John A. Dunn, Michael D. Walla, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

The chemistry of Maillard or browning reactions of glycated proteins is being studied in model systems in vitro in order to characterize potential reaction pathways and products in biological systems. In previous work with the Amadori rearrangement product N alpha-formyl-N epsilon-fructoselysine (fFL), an analog of glycated lysine residues in proteins, we showed that fFL was oxidatively cleaved between C-2 and C-3 of the carbohydrate chain to yield N epsilon-carboxymethyllysine (CML) and D-erythronic acid. We then detected CML in proteins glycated in vitro, as well as in human lens proteins and collagen in vivo (Ahmed, M. U., Thorpe, S. R., and …

How Do Harpacticoid Grazing Rates Differ Over A Tidal Cycle? Field Verification Using Chlorophyll-Pigment Analyses, Alan W. Decho

Faculty Publications

Four species of meiobenthic copepods were examined for diatom feeding. Microscopic analysis of gut-pellet contents from field-collected individuals indicated frequent ingestion of diatoms by 3 harpacticoids (Scottolana canadensis, Microarthridion littorale, Cletocamptus deitersi) while occasional diatom ingestion occurred Paronychocamptus huntsmani. Frustules were usually empty and broken, indicating that contents were digested. Laboratory experiments using ¹⁴C-labeling showed assimilation of diatoms by the 3 species examined. Field grazing rate studies were conducted over different portions of a tidal cycle using fluorescent chlorophyll-pigment analysis of gut-contents. Highest diatom consumption (p<0.05) occurred just after the mudflat became exposed (i.e. Early Low Water level, ELW) for S. canadensis, while consumption at Late Low Water …

A Cytochemical Study Of The Transcriptional And Translational Regulation Of Nuclear Transition Protein 1 (Tp1), A Major Chromosomal Protein Of Mammalian Spermatids, Mohammad A. Heidaran, Richard M. Showman, Wilson Stephen Kistler

Faculty Publications

Immunocytochemical localization and in situ hybridization techniques were used to investigate the presence of spermatid nuclear transition protein 1 (TP1) and its mRNA during the various stages of spermatogenesis in the rat. A specific antiserum to TP1 was raised in a rabbit and used to show that TP1 is immunologically crossreactive among many mammals including humans. During spermatogenesis the protein appears in spermatids as they progress from step 12 to step 13, a period in which nuclear condensation is underway. The protein is lost during step 15. An asymmetric RNA probe generated from a TP1 cDNA clone identified TP1 mRNA …

The Economics Of Public Assistance For Private Nonindustrial Timber Sales In Mississippi, Steven H. Bullard, Robert J. Moulton

Faculty Publications

The U.S. South has many forestry advantages, yet public and private efforts are increasingly needed to encourage reforestation and active forest management in the region. The review draft of "The South's Fourth Forest, Alternatives for the Future" (USDA Forest Service 1987a) highlights the urgent need for increased efforts to ensure future timber availability:

... projections of resource change mean that the South is facing a future of rising stumpage and roundwood product prices, much lower rates of growth in timber harvests, and declines in employment in the forest industries" (p. xxxv).

The report also highlights great opportunities to increase forest …

Southern Pine Beetle And Fire In Wilderness Areas: The Kisatchie Hills Wilderness, Kisatchie National Forest, David Kulhavy, William G. Ross

Faculty Publications

Southern pine beetle infestations affect wilderness areas in the southeastern United States. In the Kisatchie Hills Wilderness area in Louisiana, a southern pine 'beetle outbreak resulted in widespread destruction of longleaf pine. Nest trees of the red-cockaded woodpecker, an endangered species, also were killed. Following the epidemic, a fire fueled by beetle-killed pines went through the wilderness. Forest structure, species composition, successional processes and general ecosystem function were substantially altered as a result of these two related disturbances. Most wilderness areas containing southern pines were managed for pine timber before being designated as wilderness. Bark beetle outbreaks are a predictable …

Marsh Management Plans In Practice: Do They Work In Coastal Louisiana, Usa?, James H. Cowan Jr., R. Eugene Turner, Donald R. Cahoon

Faculty Publications

Louisiana's coastal wetlands represent about 41% of the nation's total and are extensively managed for fish, fur, and waterfowl. Marsh management plans (MMPs) are currently used to avoid potential user conflicts and are believed to be a best management practice for specific management goals. In this article, we define MMPs and examine their variety, history, impacts, and future.

A MMP is an organized written plan submitted to state and federal permitting agencies for approval and whose purpose is to regulate wetland habitat quantity and quality (control land loss and enhance productivity). MMPs are usually implemented by making structural modifications in …

Protecting Waste Assimilation Streamflows By The Law Of Water Allocation, Nuisance, And Public Trust, And By Environmental Statutes, Peter N. Davis

Faculty Publications

Both federal and state water pollution control statutes require dramatic reductions in waste discharges, but not their total elimination. Those statutes require establishing water quality standards for receiving waters and presume that they will be adequate to assimilate the residual post treatment wastes. But nothing is those statutes assures that minimum flows for waste assimilation in fact will remain in existence. Neither the common law nor eastern and western diversion permit statutes expressly provide direct means for establishing such minimum protected flows for residual waste assimilation. Those means include establishing minimum flows for fish and wildlife habitat and recreation purposes …

Platelet-Derived Growth Factor Mrna Detection In Human Atherosclerotic Plaques By In Situ Hybridization, J. N. Wilcox, K. M. Smith, L. T. Williams, S. M. Schwartz, D. Gordon

Faculty Publications

Platelet-derived growth factor (PDGF) mRNA, and mRNA for its receptor, have been localized to specific cell types within the human atherosclerotic plaque, using in situ hybridization. The predominant cell types found to express PDGF A and B chain mRNA are mesenchymal-appearing intimal cells and endothelial cells, respectively, with little or no expression detected in macrophages. The distribution of PDGF receptor mRNA containing cells was also examined and found to be localized predominantly in the plaque intima.

Ribosomal Protein Synthesis Is Not Regulated At The Translational Level In Saccharomyces Cerevisiae: Balanced Accumulation Of Ribosomal Proteins L16 And Rp59 Is Mediated By Turnover Of Excess Protein., Y. F. Tsay, J. R. Thompson, M. O. Rotenberg, J. C. Larkin, J. L. Woolford

Faculty Publications

We have investigated the mechanisms whereby equimolar quantities of ribosomal proteins accumulate and assemble into ribosomes of the yeast Saccharomyces cerevisiae. Extra copies of the cry1 or RPL16 genes encoding ribosomal proteins rp59 or L16 were introduced into yeast by transformation. Excess cry1 or RPL16 mRNA accumulated in polyribosomes in these cells and was translated at wild-type rates into rp59 or L16 proteins. These excess proteins were degraded until their levels reached those of other ribosomal proteins. Identical results were obtained when the transcription of RPL16A was rapidly induced using GAL1-RPL16A promoter fusions, including a construct in which the entire …

Dehalogenation In Marine Sediments Containing Natural Sources Of Halophenols., G. M. King

Faculty Publications

Halophenols such as 2,4-dibromophenol (DBP) occur naturally in some marine sediments, as a consequence of various animal and algal activities. In an earlier study, DBP was observed in the burrow microenvironment of the hemichordate Saccoglossus kowalewskii. At the concentrations found in the burrow lining, aerobic respiration appeared to be inhibited significantly relative to anaerobic catabolism. This effect, as well as factors contributing to the degradation of DBP, has been documented further here. Results from the addition of radiolabeled DBP to oxic and anoxic sediment slurries and growth experiments with aerobic and anaerobic enrichments suggested that aerobes did not significantly metabolize …

Determination Of The Range In Binding-Site Densities Of Rat Skin Heparin Chains With High Binding Affinities For Antithrombin., A. A. Horner, M. Kusche, U. Lindahl, C. B. Peterson

Faculty Publications

Rat skin heparin proteoglycans vary markedly in the proportions of their constituent polysaccharide chains that have high binding affinity for antithrombin. As the proportion of such chains in a proteoglycan rises, their degree of affinity for antithrombin also increases [Horner (1987) Biochem. J. 244, 693-698]. The antithrombin-binding-site densities of such chains have now been determined, by measuring heparin-induced enhancement of the intrinsic fluorescence of antithrombin and by chemical analysis for the disaccharide sequence glucuronosyl-N-sulphoglucosaminyl (3,6-di-O-sulphate), which is unique to this site in heparin [Lindahl, Bäckström, Thunberg & Leder (1980) Proc. Natl. Acad. Sci. U.S.A. 77, 6551-6555]. Antithrombin-binding-site density ranged from …

Allochares Azureus: An Unusual Wasp Exploits Unusual Prey (Hymenoptera: Pompilidae; Arachnida: Filistatidae), Mark Deyrup, James T. Cronin, Frank E. Kurczewski

Faculty Publications

No abstract provided.

Divergence Of The Recent Trends In Coronary Mortality For The Four Major Race-Sex Groups In The United States, C. Sempos, R. Cooper, M. G. Kovar, M. Mcmillen

Faculty Publications

Since 1976 there has been a leveling off or slowdown in the rate of decline in coronary heart disease (CHD) mortality. The age-adjusted absolute annual rate of decline in CHD mortality rates during 1968-75 (Δ rate/100,000 population/year) was virtually identical for White males (-7.54), Black males (-7.85), and Black females (-7.20), and somewhat lower for White females (-4.25). During 1976-85, however, the secular trends diverged considerably. Age-adjusted rates continued to decline at the same annual rate for White males, while the decline was approximately half as steep for the other three race-sex groups. During 1976-85 there was also a leveling …

Feminist Jurisprudence: Grounding The Theories, Patricia A. Cain

Faculty Publications

No abstract provided.

Book Review Of The Law Of War, Linda A. Malone

Faculty Publications

No abstract provided.

Gender Justice And Its Critics, Neal Devins

Faculty Publications

No abstract provided.

Psychology Among The Saints: The Development Of Behavioral Science At Brigham Young University, Bruce L. Brown, Mark K. Allen

Faculty Publications

There was a strong interest in psychology at Brigham Young University at the turn of the century; the third president was a psychologist and a number of distinguished psychologists regularly visited the campus. An outstanding young scholar who was destined to become the only Mormon president of the American Psychological Association started a vigorous academic psychology program in those early years, but he left the university because of a controversy over his teachings. Psychology at Brigham Young University developed little from that time until the 1940s. The 1950s were a time of rapid growth and development, expansion of the faculty, …

Digital Neural Networks, Tony R. Martinez

Faculty Publications

Demands for applications requiring massive parallelism in symbolic environments have given rebirth to research in models labeled as neural networks. These models are made up of many simple nodes which are highly interconnected such that computation takes place as data flows amongst the nodes of the network. To present, most models have proposed nodes based on simple analog functions, where inputs are multiplied by weights and summed, the total then optionally being transformed by an arbitrary function at the node. Learning in these systems is accomplished by adjusting the weights on the input lines. This paper discusses the use of …

Backfilling Canals To Mitigate Wetland Dredging In Louisiana Coastal Marshes, Christopher Neill, R. Eugene Turner

Faculty Publications

Returning canal spoil banks into canals, or backfilling, is used in Louisiana marshes to mitigate damage caused by dredging for oil and gas extraction. We evaluated 33 canals backfilled through July 1984 to assess the success of habitat restoration. We determined restoration success by examining canal depth, vegetation recolonization, and regraded spoil bank soils after backfilling. Restoration success depended on: marsh type, canal location, canal age, marsh soil characteristics, the presence or absence of a plug at the canal mouth, whether mitigation was on- or off-site, and dredge operator performance.

Backfilling reduced median canal depth from 2.4 to 1.1 m, …

Ministry, Management, And The Ecumenical Movement, Gary M. Simpson

Faculty Publications

The ecumenical movement in contemporary America should not be surprised to find itself in a quandary of questions regarding the "ministry” of the gospel. From the first decades following the ascension of Jesus until the present the whole complex of emerging questions of ministry have been intimately bound up with society-wide crises of authority. While it is nearly impossible to sort out the myriad questions regarding ministry that have arisen in the American context, one factor in particular has and, if left unchecked, will continue to subvert the ministry of the gospel: a society-wide managerial mode of authority. It has …

A Public Ministry By All The Baptized?, Patrick R. Keifert

Faculty Publications

Any discussion of the ministry of the baptized eventually reaches a point where someone asks, “If all the baptized are ministers, then why and how do we distinguish between the ministry of clergy and laity?” One promising answer begins, “The clergy have a public ministry....” The unspoken half of that answer, seldom said, but powerfully lived out in contemporary capitalistic cultures is, “The laity’s ministry is private.” This response constricts the scope of the gospel and plays into the contemporary gulf between the public and private dimensions of our lives.